Photos

The Kazan Arena football stadium, venue for the 2018 FIFA World Cup, right, sits behind the Palace of Martial Arts, center, in Kazan, Russia, on Tuesday, July 21, 2015. Russia's central bank halted purchases of foreign currency to replenish the country's international reserves, a move that may lay the groundwork for a fifth interest-rate cut this year at a meeting on Friday. Photographer: Andrey Rudakov/Bloomberg